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管理涉及非处方阿片类药物洛佩拉米德的药物相互作用,通过基于生理学的药物动力学建模
Zhu Zhou1, Garrett R Ainslie2, Mengyao Li3
1Department of Chemistry, York College, City University of New York, Jamaica (Queens), New York, USA.
一个新的模型预测了洛佩拉米德如何与其他药物相互作用. 这有助于防止洛佩拉米德的危险副作用,特别是与CYP或P-gp抑制剂结合使用时.
科学领域:
- 药理动力学和药物新陈代谢
- 在药理学中的计算建模.
- 药物安全与毒理学
背景情况:
- 洛佩拉米德是一种治疗腹的阿片类药物,由CYP酶代谢,并通过P-gp流出.
- 高剂量的洛佩拉米德可以引起严重的心脏毒性,特别是在酶或载体抑制剂.
- 了解洛佩拉米德的相互作用对于患者的安全至关重要.
研究的目的:
- 开发和验证对洛佩拉米德的生理学基础药理动力学 (PBPK) 模型.
- 模拟洛佩拉米德与各种CYP和P-gp抑制剂的相互作用.
- 评估模型在药物相互作用 (DDI) 条件下预测洛佩拉米德药理学的能力.
主要方法:
- 对洛佩拉米德的PBPK模型的开发.
- 使用10项临床研究 (4-16毫克剂量) 的数据验证模型.
- 在抑制剂的存在下模拟洛佩拉PK:氨酸,利托纳维尔,gemfibrozil,伊特拉科纳和abemaciclib.
主要成果:
- 该PBPK模型准确地描述了不同剂量的loperamide药理动力学 (AUC,Cmax) (0.61-1.41倍的观察).
- 该模型成功预测了来自七项DDI研究的洛佩拉胺PK概况.
- 在DDI研究中预测的AUC和Cmax在观察值的0.78-1.45倍范围内.
结论:
- 一种针对洛佩拉胺的新型PBPK模型已成功开发和验证.
- 该模型可以预测loperamide的药理动力学与CYP/载体抑制剂.
- 该工具可以在未经测试的DDI场景中指导安全的洛佩拉胺剂量,以最大限度地降低毒性风险.
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